package com.asdc.spring.alibaba.controller;

import com.alibaba.csp.sentinel.annotation.SentinelResource;
import com.alibaba.csp.sentinel.slots.block.BlockException;
import lombok.extern.slf4j.Slf4j;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.RestController;

import java.util.concurrent.TimeUnit;

/**
 * @auther zzyy
 * @create 2020-02-24 16:26
 */
@RestController
@Slf4j
public class FlowLimitController {

    @GetMapping("/testA")
    public String testA() {
        log.info("come in testA");
        try {
            TimeUnit.MILLISECONDS.sleep(800);
        } catch (InterruptedException e) {
            e.printStackTrace();
        }
        return "------testA";
    }

    @GetMapping("/testB")
    public String testB() {
        log.info(Thread.currentThread().getName() + "\t" + "...testB");
        return "------testB";
    }


    @GetMapping("/testD")
    public String testD() {
       /*
        try {
            TimeUnit.SECONDS.sleep(1);
        } catch (Exception e) {
            e.printStackTrace();
        }
       */
        int i = 10 / 0;
        log.info("testD 测试RT");
        return "------testD";
    }

    /**
     * SentinelResource 类似 HystrixCommand
     * @param p1
     * @param p2
     * @return
     */
    @GetMapping("/testHotKey")
    @SentinelResource(value = "testHotKey",blockHandler = "excHotKey")
    public String testHotKey(@RequestParam(value = "p1",required = false) String p1,
                             @RequestParam(value = "p2",required = false) String p2)
    {
        return "------testHotKey";
    }
    public String excHotKey (String p1, String p2, BlockException exception)
    {
        return "------excHotKey,o(╥﹏╥)o";  //sentinel系统默认的提示：Blocked by Sentinel (flow limiting)
    }

}
